Question

astronaut 【astronaut】n.太空人The astronauts of the United States are returning to the earth from the moon.美国太空人正由月球返回地球。

Accepted Answer

['æstrənɔːt] 
astronauta person trained to travel in a spacecraft
An astronaut is someone who travels in space. While the term was once reserved for military-trained professionals, recent accessibility of space travel has seen the term astronaut now used to refer to anyone traveling in a spacecraft, including civilians.
The word astronaut includes the root naut, from nautes, the Greek word for "sailor." This suffix can be used to create many travel-specific words. For example, the Argonauts were mythical Greek sailors on the ship named the Argo. Astronaut gets the astro from the Greek word astron, meaning "star," making an astronaut a “star sailor.” Russian space explorers took the title cosmonauts, with the cosmo part coming from the Greek for "universe," kosmos, so both have the same meaning.
All forms of 'astronaut' will appear on average once every 2307 pages.astronautastronauticastronautical

Front	astronaut
Pron	['æstrənɔːt]
Back	【astronaut】 n.太空人 The astronauts of the United States are returning to the earth from the moon. 美国太空人正由月球返回地球。
Vocab	astronauta person trained to travel in a spacecraft An astronaut is someone who travels in space. While the term was once reserved for military-trained professionals, recent accessibility of space travel has seen the term astronaut now used to refer to anyone traveling in a spacecraft, including civilians. The word astronaut includes the root naut, from nautes, the Greek word for "sailor." This suffix can be used to create many travel-specific words. For example, the Argonauts were mythical Greek sailors on the ship named the Argo. Astronaut gets the astro from the Greek word astron, meaning "star," making an astronaut a “star sailor.” Russian space explorers took the title cosmonauts, with the cosmo part coming from the Greek for "universe," kosmos, so both have the same meaning. All forms of 'astronaut' will appear on average once every 2307 pages. astronaut astronautic astronautical

Astronaut Greek Word Travel Term Space æstrənɔːt N.太空人